The practical value is completeness. A meeting or teaching room needs several colours and something to erase with, and buying them separately means one of them is always missing. Sets with a holder keep them at the board rather than in a drawer. Check the set includes the tip shape the room actually uses. See whiteboard markers, whiteboard accessories and whiteboards.

Artline whiteboard marker set in a holder on a bright meeting room desk beside a whiteboard.
Whiteboard Marker Sets for Office and School

Whiteboard marker sets for classrooms, offices and planning boards. Shop practical colour sets for clear communication.